Winder



H.` D.' coLMAN. Er AL original Filed sept. 11. 1.9719 #L2 'sng'atsvn'eet a" C/zz Owafdl?. Ca Bari All Refer Patented Sept.. 10,192.9.

UNITED STATES PATENT oFFlc.

HOWARD D. coLMAN AND naar A. rarnasoN, or nocxroan, ILLINOIS: assumons, DY :aIEsNE ASSIGNMENTS, 'ro EDGAR s. NETHERCUT, or EvANs'roN, ILLINOIS.

` WINDER,

Application led September 11, 1919, Serial No. 323,075. .Renewed `September 12, 1928.

This. invention relates to means for supporting a yarn mass for rewinding. While the invention is susceptible of various uses, it is particularly applicable to means for supporting a bobbin which is to be rewound in an automatic Winder of the type illustrated, for example, in the Colman Patent No. 1,267,- 977, dated May 28, 1918.

In 4the accompanying drawings Figure 1 is a view illustrating in side elevation a bobbin-holder embodying the features of this invention. Fig. 2 is a ragmental front view of the parts shown in Fig. 1. Fig. 3 is an enlarged sectional view taken in the plane of line 3 3 of Fig. 1. Fig. 4 is a plan view.v

Fig. 5 isa vertical sectional view taken in the plane of line 5 of Fig. 2. Fig. 5 illustrates 'the parts in a diierent position from that represented in Fig. 2. Fig. 6 is a view similar to Fig. 5 but showing the parts in another position. Fig. 7 is a perspective 'view of the thread guide. Fig. 8 is a sectional detail.

That embodiment of the invention which is illustrated in the drawings comprises a framework consisting of two side plates 1 and 2 and a top plate 3 rigidly secured together and supported in the framework of the winder in a suitable manner.

Means is provided for supporting an active or running bobbin A and a reserve bobbin B, the end portion of the yarn on the reserve bobbin extending across a bridge C and being held in a clamp D. In Fig. 5 the bobbin A is represented as having been completely unwound. In order to limit the ballooning of the yarn as it leaves the active bobbin, said bobbin is supported within a tubular casing 4, the bobbin being mounted upon a skewer 5. Above the casing 4 are a guide 6 for the runningl thread and a'pocket 7 for the reserve bobbin B. Means is provided for withdrawing the skewer 5 to permit the bobbin A, when wholly or partially unwound, to fall out .of the casing 4; and vmeans also is provided for swinging the casing 4 into alinement with the pocket 7 in order that the reserve bobbin may slide into the casing 4. After the reserve bobbin has slid in to the casing 4, said casing is returned to operative position and the skewer isl moved into supporting relation to the new active bobbin.

The tubular casing 4 is provided with trunnions 8 (Fig. 2) which are supported in openings 9 in theside plates 1 and 2. Rigid with the casing 4 is a crank arm 10 which is connected by means of a link 11 to a crank arm 12 which is pivotally mounted on the side plate 1. Rigid with the arm 12 is a crank arm 13. A contractile sprin 14 connected with the crank'arm 13 norma ly holds the casing 4 in the running position shown in Figs. 2 and 5. The action of the spring 14 is limited by contact of the casing 4 with the transverse member 15 of the framework.

The thread guide 6 consists of a metal plate bent to provide two overlapping edges 16 and 17 which are s aced apart to form a passage 18 through which the thread may pass latersaid passage leading to an opening 19.

all Wien the casing 4 is in running position, the opening 19 is axlally alined with thelcasing.

As shown in'Fig. 5., the reserve bobbin pocket 7 is located above and forwardly of the casing 4. The bottom of the pocket 7 is open, the reservebobbin being supported in the pocket by means of a plate 22 attached to the 'upper end of the casing 4. When the casing 4 is in running position the plate 22 constitutes a closure or bottom for the pocket 7. As indicated in Fig. 2, the inner wall of the pocket 7 has a slot 23. The lower ends of the slot 23 and the passage 18 are adjacent to each other. In the top plate 3 is a slot 3a havingfa Haring entrance. The rear portion of the passage 3 communicates with the slot 23. The thread of the reserve bobbin having been tied to the exhausted thread andthe reserve bobbin havin been permitted to slide into the casing 4, t e thread of the reserve bobbin passes laterally through the slots 3a and 23 and the passage 18 and enters the opening 19 as the casing 4 swings into running position.

In order to retain the bobbin within the casing 4 whilev the casing is in the position shownv in Fig. 6, there is provided a stop plate 24 supported in the framework adjacent to the lower end of the tube 4 when the latter is in alinement with the pocket 7.

The skewer 5 .is of such dimensions as to pass freely up into the bore of the bobbin a suiicient distance to support the bobbin with the axis of the bobbin coinciding approximately with the axis of the casing 4. The skewer is rigidly secured toA thecross bar 25 of a bail 26, said bail comprising the two side, arms 27 and 28. The upper end of the arm 27 is pivoted at 29 to a lever 30 which is pivoted to the framework at 31. The forwardly extending arm 32 of the lever 30 is arranged to be engaged by a box cam E on the traveling mechanism (not shown) of the Winder.

Means is provided for holding the spent bobbin while the skewer 5 is being withdrawn from' said bobbin and for guiding the butt of the new bobbin into 'register with the skewer. This means includes a stripper member 33 having a concave portion 34 adapted to lit upon the lower end of the casing 4.

Centrally of the concave portion 34 is an opening 35 to admit the skewer 5. The stripper 33 constitutes the cross-piece of a bail comprising the side arms 36 and 37 The ends of the cross-piece 33 are notched as at 38 (Figs. 2`and. 8) to fit slidably upon the side arms 27 and 28 of the outer bail. The upper portions of the arms 36 and 37 of the inner bail have longitudinally elongated openings 39 (Figs. 1, 2 and 3) into which extend pivots 40 ixed to the side plates 1 and 2.

` It will be seen that the bails are slidable longitudinally of each other, the lower portions of the bails being guided upon each .other by means of the notched ends of the stripper 33. The stripper 33 is normally held against the lower end of the casing 4 by means of contractile springs 41 which are anchored to the side plates 1 and 2 and are connected to lugs 42 on the inner bail arms 36 and 37. The outer bail isv normally held in the position shown in Figs. 1 and 2 by means of a locking in 43 located on the lever 30 in position to engaged by a shoulder 44 on a lever 45, said lever being mountedupon the pivot 40 between the side plate 1 and the inner bail arm 3G. The spring 14 is connected to the lever 45 andnormally holds the shoulder 44 in place beneath the locking pin 43. The lever 45 is provided above the shoulder 44 with a guide flange 46 arranged to bear against the locking pin 43.

As shown in Figs. 5 and 6, the cam E is arranged to move the lever 30 sufficiently to withdraw the skewer 5from the spent bobbinA and to bring the axis 29 into alinement with the axis 40, the downward movement of the outer bail being limited by engagement of a stop lug 47 (Fig. 8) o.; the arm 28 with the stripper 33. f.,

Mechanism is provided for swinging the bails forward to remove the stripper 33 and the skewer 5 from their position directly beneath the casing 4 in order to permit the shown in Fig. 1 with the lower arm of the'v lever in contact with a stop pin 48 on the side plate 1. On the lower end of the lever 45 is a pin 49. The traveling mechanism of the winder includes a cam F arranged to engage the upper arm of the lever 45 and swing said lever rst to withdraw the shoulder 44 from beneath the locking pin 43 and later, after the cam E has brought the axis 29 into register with the axis 40, to swing the lever 45 to carr the pin 49 against the bail arms 27 and 36, tlsiereby swinging the bails into the position shown in Fig. 6.

The means herein shown for swinging the casing 4 includes a cam G on the traveling mechanism, said cam portion being arranged to move the arm 13 against a stop pin 50.

Assuming the parts to be in the position shown in Figures 1 and 2, the operation is as follows: The cam F moves the lever 45 far enough to withdraw the shoulder 44 from below the locking pin 43. The cam E acting upon the arm 32 lowers the outer bail until the pivot 29 is in alinement with the pivot 40, thereby withdrawing thevskewer 5 from the spent bobbin. While the skewer is being removed from the bobbin, the latter i's supported against downward movement by the stripper 33, the stripper being held elevated by the springs 41. After the skewer has been spent' bobbin to fall from the casing. This withdrawn from the bobbin, the continuing downward movement of the outer bail 26 brings the step lug 47 (Figs. 2 and 8) into ena gagement with the stripper 33, whereby the stripper is moved downward to the extent permitted by the elongated openings 39. Contact of the upper end wall of the openings 39 with the pivots 40 limits the downward movement of the stripper and the skewer. The downward movement of the stripper 33 carries the stripper clear' of the casing 4. The cam F now moves the lever 45 still farther to swing the bails into the position shown in Fig. 6, thus allowing the spent bobbin to drop out of the casing 4. The cam G then operates the arm 1.3 to swing the casing 4 into the position illustrated in Fig. 6. whereupon the reserve bobbin slides into said casing. The cam F then leaves the lever 45, permitting the springs 4l to swing the skewer and the stripper into the position represented-in full lines in Fig. 5. The cam G then `until it comes into contact with the cover plate 6. There'is thus formed a tuberelatively tightly closed at both ends. The movement of the casing 4: into place beneath the thread guide 6, and the operation of .mechanisms not herein shown cause the thread to move laterally into normal position.

When yarn is being drawn 0H from the end lof a bobbin in unwindin'g, the ballooning strand of yarn encounters considerable aerial resistance. By enclosing the bobbin in a casing the air in the casing is caused to revolve with the yarn, thereby materially reducing the aerial resistance. This results in a lower and more uniform tension upon the yarn being unwound, and consequently a higher speed of unwinding can be attained with less danger of breakage of the yarn.

In the following claims, the term bobbin is to be construed to include other generally similar yarn masses. In all other respects,

sas well, the claims are to be construed as broadly as the prior state of the art permits, the foregoing detailed description having been given for the sake of clearness of understanding of the present embodiment, and

not for the purpose of limiting the invention.

We claim as our invention: 1. The combination of a bobbin container, a stripper, a bail supporting said stripper, a

` pivot for the bail,'a second bail guided to slide on and swing with the first bail, a skewer on the second bail, a lever pivoted `to the second bail, means to move theleverfto bring the pivotal connection between the le- Y ver and the second bail into register with thev out of alignment with the container. 60

` ivot of the first bail, and means to swing the .bailsto carry the skewer and the bobbin into and out of ali ment with the container.

2. The -com inationof a bobbin container, members slidably and pivotally supported above the container, a stripperon one of said members, a skewer on'the othermember, said stripper and skewer being below the con-y tainer` means formoving said members longitudinally of the container, and means for swinging said members to carry the stripper and the skewer out of alignment withv the container. 3. In combination of a bobbin container, members slidably and pivotallysupported stripper on one of said members, a skewer on thepother member, said stripper and slrewer' being below the container, means for moving tinl last mentioned member longitudinally of the container, and means for swin in said members to carry the stripper and t es evier 4. The combination of a reserve-bobbin pocket, a thread guide,an active-bobbin container movable alternately into operative relation to said 'pocket and guide,`aslewer for l supporting a bobbin insaid container,

means for'movingthe I'skewer into and out pocket, a skewer for supporting a bobbin In said container, means for moving the skewe.` into and out of operative relation to a bobbin, and means for moving the. skewer into and out`of place beneath the container.

6. The combination of a bobbin container, a stripper, a skewer adapted to support a bobbin within the container, members supporting the skewer and the stripper, means to move said members longitudinally of the container, and means to swing said members to carry the stripper and the skewer out of alignment with the container.

7. The combination of a bobbin container, a skewer adapted to support a bobbin within the container, a member supporting the skewer, means to move said member longitudinally lof the container, and means to swing said member to carry the skewer out of alignment with the container.

8. A Winder having, in combination, a container for. the bobbin being u nwound, a'mem ber to close the lower end of the container, a part attached to and supporting said member, and mechanism to swing said part to carry said member away from the container.

9.' The combination of a reserve-bobbin pocket, an 'active-bobbin container pivoted relation to the pocket.

10. The combination ofan active-bobbin container pivoted between its ends, means for swinging the container alternately into receiving and operative position, and a bobbin st'op located opposite the lower end of the container when the container is in receiving position.

11. The combination of a bobbin container, a stripper, a skewer adapted to support --a bobbin in the container, means for movin the skewer and the stripper lontgitudina 1y of the container, and means or causing relative lateral movement between the container, on the one hand, and the skewer and the stripper on the other hand.

12; The combination of a bobbin con- Qtaner, a skewer adapted to support a bobbin in the container, means for moving the 'skewer longitudinall of the container and means for causing re ative lateral movement tainer, a member for closingthe lower end of the container, said member having `an iso i opening, askewer adapted to be-inserted into4 tubular container pivoted between its ends below the guide to contain a bobbin while it is beingunwound, and means for swinging the container into and out of alinement with the guide.

16. The combination of va reserve-bobbiny pocket, a container pivoted between its ends below the pocket to contain a bobbin while it is being unwound, and means for swinging Vthe container into and out of operative relation to the pocket.

17. The combination of a reserve-bobbin pocket, an active-bobbin container pivoted between its ends below the pocket, means for swinging the container into and out of receiving relation to the pocket, and a member connected to thecontainer for closing the lower end of the pocket when the container is out of receiving relation to the pocket.

` 18. The combination oi a reserve-bobbin pocketJ an active-bobbin container pivoted between its ends, means for swinging the container to place the upper end thereof in receiving relation to .the pocket, a bobbin stop located opposite the lower end of the` container when the container is in receiving the pocket.

relation to 4the pocket, and a part connected -to the container for closing the pocket when the container is not in receiving relation to 19. The combination vof a reserve-bobbin pocket, a thread guide, an active-bobbin container pivoted between its ends, means for swinging the'container to move its upper end to and away from the guide and the pocket, a bobbin stop located opposite the lower end of the container when the upper endof the container is at the pocket, and means to close l the lower endof the container when the container is inoperative relation to the guide.

2W The combination of a reserve-bobbin pocket, a thread guide, anda container for a bobbin which is bein unwound, said container being movable a ternately into'operative relation to said pocketand guide. Y

21. The combination of a source of bobbin su ply, a thread guide, and a holder for a 1n which is being unwound, said holder be g movable alternately into operative relat n to said guide and source of su Ely.

2 The combination of a source o obbin supply, a thread guide, a holder for a bobbin which is being unwound, and means for cans-- ing relativemovement between the source of receiving 'and normal position, a mem er to close the lower end of the casing when inreceiving position, and a member to close the lower end of the casing when in normal position.

25. A Winder having, in combination, a stationary thread-guide, a stationary 'reservebobbiny holder, and means for moving a bobbin from said holder to unwinding beneath the thread-guide.

26. The combination of a reserve-bobbin pocket, an active-bobbin container mounted below the pocket for movement into and out of receiving relation to the pocket, and means on the container for closing the lower end of the pocket when the container is out of receiving relation to the pocket.

27. The combination of a reserve-bobbin pocket, an active-bobbin container movable to place its upper end in receiving relation to the pocket, a`bobbin stop located opposite the lower end of the container when the container is in receiving relation to the pocket, and

position means on the container for closing the pocket when the container is not in tion to the pocket.

receiving rela.v

28. The combination of a reserve-bobbin-A pocket, a thread guide, and a container for a bobbin which is being unwound, said con# tainer being pivoted between its ends below 'i the pocket and the gnide to swing to and away from the guide and the pocket.

29. A Winder having, in combinatiom. a thread guide and acontainer adapted to contain a bobbin while it is being unwound, said container being pivoted between its ends and arranged when in one position to present the tip of Jthe bobbin adjacent to the thread guide.

30. A winder'having, incombination, a

ysupport for a reserve yarn mass, a stationary,

thread guide, vand means for movinga bobbin away from the support to an unwinding po.- sition wherein .the tip of the bobbin is directed -towar'd the guide.

31. In a winder,.a reserve bobbin pocket' having a top wall containing a threadide passage havin a Haring entrance, a c amp above the' poc et for the end ofthe thread of the4 reserve bobbin, and a. brid e for said thread between the clamp and t e. pocket, said bridge being located forwardly of said entrance. '4

32. A bobbin-supporting structure comprising a reserve-bobbin pocket having a stationary forwardly inclined front Wall, an unwinding compartment rearwardly of said pocket, a top Wall for said compartment, said top wall having a thread-guide, a clamp above said structure for the end of the thread on a reserve-bobbin, and means forming a passage through which said thread may pass laterally to the thread guide.

33. A Winder having, in combination, a reserve bobbin pocket, means forming a space behind said pocket for the unwinding of a bobbin, a guide above said space for the thread being unwound, a clamp above the reserve-bobbin pocket for the end of the reservethread, and means forming' a guideway through which the reserve thread may pass laterally to the thread guide.

34. A bobbin-supporting structure comprising a reserve-bobbin pocket having a stationary forwardly inclined front Wall, a rear Wall and a top Wall; means below said pocket for supporting a bobbin while being unwound; and a thread guide above said means, said top and rear Walls being slotted to guide the thread laterally to said thread guide.

35. In a Winder, a stationary reserve bobbin pocket having an opening in its upper end for the manual insertion of a reserve bobbin, a bottom to support the butt ot' the reserve bobbin, and an inclined front wall against which the bobbin rests, said bottom being withdrawable to permit the endwise discharge of the bobbin.

36. In a Winder, a stationary reserve bobbin pocket having an opening in its upper end for the reception of a reserve bobbin and a bottom Which is withdrawable to permit the discharge of the bobbin, the top and rear Walls of said pocket being slotted to permit the lateral escape of the thread.

37. In a Winder, a stationary reserve-bobbin pocket, a clamp above the pocket for the end of the thread of the reserve bobbin, means rearwardly of the pocket for supporting the bobbin during the unWinding of the latter, and a bridge for the reserve thread between the clamp and the pocket and forwardly of said bobbin-supporting means.

In testimony whereof We have hereunto set our hands.

HOWARD D. COLMAN.

BURT A. PETERSON. 

